hello alexei antonovich romanovsky candidate of medical sciences doctor endocrinologist associate professorthe department of endocrinology of the belarusian medical academy after graduation. research interests are diabetology and associated cardiovascular diseases, tyre and dalogy emergency endocrinology member of the european association for the study of diabetes mellitus of the international diabetes federation of the european and belarusian association of endocrinologists. let's first find out what is insulin and what is glucose and in general how are they connected to each other and connected insulin is a hormone that is produced in the pancreas by beta cells and insulin lowers blood glucose levels. insulin is the main hormone that regulates the entire metabolism of the entire metabolism, that is, insulin regulates the metabolism of glucose under the action of insulin, protein is synthesized and muscles grow. under the action of insulin , fat is synthesized and under the action of insulin , slow carbohydrates, starch, or as we call it glycogen, are synthesized in the muscles and in the